Lightroom Mobile: Doesn't remember last image worked on

Started using LR on my IPAD Pro linked to my IMAC.... I am a wedding photographer. Wedding I am processing has 1500 images. So I work on processing with my IPAD Pro.... maybe work on 100 images then leave to do other things. When I come back I wish there was a way for me to pick up where I left off. I need to search for the last image I worked on. I have been using star rating to help find the last image I worked on but it does not work that well. When I edit on my IMAC in LRC and open up LR it goes right to the image I was editing last. Wish LR on my IPAD would do the same. Of have some sort of Highlighting feature that will show the image I was working on when I am in the pane where you view all the images. :-)

Easiest way is to
1) Create a collection for your iPad editing. “Smith Wedding iPad edits”
2 Make a copy of the wedding photos into the new collection.
3 View the collection in grid view.
4 Click the “...” top right
5 Click Sort by
6 Click Modified Date, and sort newest to oldest.

You last edited photo with be at the top left.

You don’t have to create a second collection, but this way should keep your main collection sort order unaffected.